CN109403861B - Non-stop drilling method for oil field drilling - Google Patents
Non-stop drilling method for oil field drilling Download PDFInfo
- Publication number
- CN109403861B CN109403861B CN201811229670.5A CN201811229670A CN109403861B CN 109403861 B CN109403861 B CN 109403861B CN 201811229670 A CN201811229670 A CN 201811229670A CN 109403861 B CN109403861 B CN 109403861B
- Authority
- CN
- China
- Prior art keywords
- slurry
- drilling
- casing
- pressure
- solid control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 85
- 239000002002 slurry Substances 0.000 claims abstract description 69
- 239000004576 sand Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 230000008021 deposition Effects 0.000 claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims description 18
- 239000007790 solid phase Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000005755 formation reaction Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a non-stop drilling method for oil field drilling. The method adopts a high-pressure solid control device for carrying out formation pressure balance and sand discharge and adopts a casing type drill rod to carry out continuous injection drilling, the high-pressure solid control device comprises a solid control tank communicated with a pipeline, and a slurry liquid inlet, a compressed gas inlet, a reverse suction type sand discharge pipe, a slurry solid discharge port, a slurry buffer plate, a slurry baffle plate, a slurry deposition ramp, a gas vent and a slurry outlet are arranged on a main body of the solid control tank. Because the high-pressure solid control device is used, the formation pressure is balanced by a mud density method without or with few mud density methods, and a series of problems of spraying, leakage, small circulation and the like between underground formations are avoided. And (4) drilling once by using a casing type drill rod according to a casing drilling mode to finish well drilling and cementing. The well drilling is realized without stopping the water injection well of the oil field, the well drilling operation can be carried out without stopping the water injection well of the oil field, and the productivity and the economic benefit of the old oil field are improved.
Description
Technical Field
The invention relates to an oil field well drilling method, in particular to a non-stop well drilling method for oil field well drilling.
Background
The current oil field drilling technology comprises: 1) and (5) conventionally drilling beside the water injection well, and stopping water injection in half a month in advance. The well drilling period is half a month, after drilling, the water injection recovery period is half a month at least, so the influence of the conventional well drilling on the normal production of the block is more than 40 days, which means about one tenth of the annual production capacity is reduced, if one well is conventionally updated in a casing damage area, about 35 days are required to be injected into the well within 450m, 21 injection wells are closed within 450m of a 125 m two-type oil layer well pattern, about 25 water-driving wells are required, the influence on the development is particularly large, and the influence on the productivity and the economic benefit is very serious. 2) The conventional under-pressure drilling, namely conventional under-balance drilling, aims to protect an oil-gas layer and only needs lower under-pressure, so that the ground under-pressure slurry treatment is only simple cyclone sand removal solid control, the slurry solid content is high, the working pressure of a rear throttle manifold is lower, the safety is ensured (the throttle valve can be damaged by high pressure), the ground is operated under-pressure for a long time and is only 2MPa, and the 7MPa annular pressure requirement of the drilling requirement without stopping injection cannot be met.
Therefore, the research and application of the integrated technology of continuous-injection and belt-pressure drilling, well logging and well cementing are the key points for solving the problems at present.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a non-stop drilling method which is simple in process, safe and reliable and replaces the conventional water injection well side drilling (well drilling by shutting down the water injection well) so as to improve the productivity and economic benefit of the old oil field.
The technical scheme adopted by the invention is as follows: the method is characterized in that the non-stop well drilling is a pressure balance drilling method, the method adopts a high-pressure solid control device for performing formation pressure balance and sand discharge, and adopts a casing type drill rod to perform non-stop well drilling, the high-pressure solid control device comprises a solid control tank communicated with a pipeline, a main body of the solid control tank is provided with a slurry inlet, a compressed gas inlet, a reverse suction type sand discharge pipe, a slurry solid discharge port, a slurry buffer plate, a slurry baffle, a slurry deposition ramp, a gas vent and a slurry outlet, and the method comprises the following steps:
firstly, drilling without stopping injection by using a casing type drill rod according to a casing drilling mode.
And secondly, after the high-pressure layer is uncovered, closing the well and building pressure, opening an outlet main valve after an annular pressure value is obtained, and controlling a throttle valve according to parameters of a mud inlet-outlet flow meter so as to enable the parameters of the mud inlet-outlet flow meter to be equal.
Thirdly, high-pressure slurry enters a slurry inlet after coming out of a wellhead, is buffered by a slurry buffer plate and is deposited in a solid phase of a ramp formed by slurry deposition ramps, a control valve of a reverse suction type sand discharge pipe is opened at regular time according to the total volume of the solid phase of the number of the scales drilled by the drill bit, and the solid phase of the slurry is discharged out of a solid control tank due to the pressure difference in the tank; the mud flows back to the drilling mud tank via control of the throttle valve.
And fourthly, after drilling in place, estimating the annular volume, filling the annular volume with cement for one time to perform well cementation, enabling the casing type drill rod to be located at the middle position in the shaft, burying the drill bit and the drill collar underground, injecting cement into the ground, then placing a rubber plug in the casing, driving a mud pump of a drilling mud tank to drive the rubber plug to the bottom, replacing the cement to the annular space outside the casing, and simultaneously rotating the casing type drill rod to ensure that the annular space is filled with the cement.
The solid control tanks are one or more, each solid control tank is provided with an inverted suction type sand discharge pipe, the slurry buffer plate is fixed on the solid control tank main body behind the slurry inlet, the slurry deposition ramp is fixed at the bottom of the solid control tank, and the slurry baffle is arranged on the slurry deposition ramp.
The casing type drill rod comprises a plurality of casings, wherein every two casings are in threaded sealing connection with a casing female head through a casing male head, and a step is arranged between the casing male head and the casing female head for sealing.
The beneficial effects produced by the invention are as follows: the well drilling can be realized without stopping the water injection well of the oil field, and the well drilling operation can be carried out without stopping the water injection well of the oil field, so that the productivity and the economic benefit of the old oil field are improved.
Drawings
FIG. 1 is a schematic block diagram of a conventional apparatus for drilling a well under pressure;
FIG. 2 is a schematic block diagram of a pressurized drilling apparatus used in the present invention;
FIG. 3 is a schematic diagram of the connection of the high-voltage solid control device in FIG. 2;
FIG. 4 is a schematic diagram of the solid control tank of FIG. 3;
fig. 5 is a schematic view of the structure of the casing type drill pipe in fig. 2.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
a non-stop well drilling method for oil field well drilling is a pressurized balance drilling method, and the method adopts a high-pressure solid control device (shown in figures 2 and 3) for performing formation pressure balance and sand discharge and adopts a casing type drill rod (shown in figures 2 and 5) for performing non-stop well drilling, the high-pressure solid control device comprises a solid control tank (shown in figure 4) communicated with a pipeline, and a slurry inlet 1, a compressed gas inlet 3, a reverse suction type sand discharge pipe 4, a slurry solid discharge port 5, a slurry buffer plate 6, a slurry baffle plate 7, a slurry deposition ramp 8, a gas vent 9 and a slurry outlet 10 are welded and fixed on a solid control tank main body 2.
In the embodiment, two solid control tanks are adopted, as shown in fig. 3, a solid control tank a and a solid control tank B are both provided with a reverse suction type sand discharge pipe 4, a slurry buffer plate 6 is fixed on a solid control tank main body 2 behind a slurry inlet 1, a slurry deposition ramp 8 is fixed at the bottom of the solid control tank, and a slurry baffle 7 is arranged on the slurry deposition ramp 8.
The design principle of the solid control tank is as follows: high-pressure mud enters a mud liquid inlet 1 after coming out from a wellhead, is buffered by a mud buffer plate 6 and is subjected to solid phase deposition on a ramp formed by a mud deposition ramp 8, the mud subjected to solid phase deposition is discharged out of the tank through a reverse suction type sand discharge pipe 4 due to the pressure difference in the tank, the remaining mud with less solid phase is discharged out of the tank through a mud outlet 10, and the mud returns to a drilling mud tank through a throttling valve group.
The casing type drill rod of this embodiment includes a plurality of casings 11, and every two casings 11 are through the sealed connection of casing male 12 and the female 13 screw thread of casing, are equipped with step 14 between casing male 12 and the female 13 of casing and are used for sealed.
The diameter of the inner hole of the casing type drill rod is the same as that of a casing with a corresponding specification. The outer part is in the form of a step sealing joint of a drill rod, and can adapt to the holding sealing of the rotary blowout preventer. After the well is drilled in place, the drill rod is the casing pipe which can be directly fixed for well completion operation without pulling out the drill.
The method of the embodiment comprises the following steps:
drilling without stopping injection by using casing type drill rod according to casing drilling mode
Normally drilling to the upper part of the high pressure layer. The logging can provide early warning time of about 20 minutes, and the control of all killing manifolds, high-pressure solid control, blowout preventers and rotary anti-spray heads is checked, so that a blowout control plan is made, and the control is carefully exercised in place.
The duties of the driller, the technician and the rotary blowout preventer are implemented in place, and the key is that: the operation of the throttle valve and the pressure solid control blow-down valve is implemented. (design is PLC industrial control full-automatic control, including emergency manual.)
According to the depth of the well drilling and the length of the casing type drill pipes, a plurality of casing type drill pipes are connected through the casing male heads and the casing female heads. The drill bit is fixed at the end part of the connected casing type drill rod, the driving device is connected to the top of the casing type drill rod, the casing type drill rod with one end of the drill bit is lifted and pulled by a winch and sent into a shaft, then one casing type drill rod is put into the shaft through the driving device, the casing is arranged in the shaft, the casing type drill rod is not lifted and pulled after being driven, and the drilling time is greatly saved.
Ordinary under-pressure drilling, namely conventional under-balanced drilling, aims to mainly protect an oil-gas layer, does not need high under-pressure drilling, and can complete drilling operation only by mud killing, drilling rod lifting, casing cementing and the like after well completion. Under the working pressure of 7MPa of a borehole annulus, the conventional underbalanced drilling causes a series of problems of borehole wall collapse and the like. Therefore, the casing type drill rod is used, and the well drilling and cementing can be completed by one-time drilling without pulling out the drill according to the casing drilling mode.
And secondly, after the high-pressure layer is uncovered, closing the well and suppressing the pressure (namely stopping the pump and closing a main flow discharge valve of the rotary blowout preventer), obtaining the annular pressure value, then opening a main inlet and outlet valve, and controlling a throttle valve according to the parameters of the mud inlet and outlet flow meters to enable the parameters of the mud inlet and outlet flow meters to be equal.
Because the operation is always carried out under pressure, the determination of the required equilibrium pressure point of the stratum in the drilling process is very critical.
And (4) quickly closing the well to perform balance test according to the flow of the slurry inlet and outlet. The method is the core technical point of the well pressurized drilling and well cementation operation and the core guarantee of the whole well safety operation. Because the drilling is balanced under pressure, the well can be drilled by using low-density mud or even by using clean water.
The specific implementation steps are as follows:
as shown in fig. 3, firstly, the solid control tank a and the solid control tank B are filled with slurry, and the outlet flow rates of the slurry of the solid control tank a and the solid control tank B are respectively set to be LC (L/s); the mud discharge amount of the mud pump to be driven into the casing type drill pipe is LJ (L/s).
a. When the inlet main valve ZA of the solid control tank A is manually selected to be opened, if LC ∠ LJ, the narrow slit short-circuit valve JA1 and the narrow slit short-circuit valve JA2 which are communicated with the solid control tank A are maintained in a normally open state, and the needle-shaped throttle main valve ZJ is in a normally open state, if LC is larger than or equal to LJ, the narrow slit short-circuit valve JA1 is firstly closed for one minute, and if LC is larger than or equal to LJ, the narrow slit short-circuit valve JA2 is closed for one minute.
b. When the inlet main valve ZB of the solid control tank B is manually selected to be opened, if the LC ∠ LJ, the narrow slit short-circuit valve JB1 and the narrow slit short-circuit valve JB2 which are communicated with the solid control tank B are in a normally open state, and the needle-shaped throttle main valve ZJ is in a normally open state, if the LC is larger than or equal to the LJ, the narrow slit short-circuit valve JB1 is firstly closed, and if the LC is larger than or equal to the LJ, the narrow slit short-circuit valve JB2 is closed for one minute.
c. When the inlet main valve ZA of the solid control tank A and the inlet main valve ZB of the solid control tank B are manually selected to be opened, if LC ∠ LJ is used, the narrow-slit short-circuit valve JA1 and the narrow-slit short-circuit valve JA2 which are communicated with the solid control tank A and the narrow-slit short-circuit valve JB1 and the narrow-slit short-circuit valve JB2 which are connected with the solid control tank B are respectively maintained in a normally open state, the needle-shaped throttle main valve ZJ is in a normally open state, if LC is larger than or equal to LJ, the narrow-slit short-circuit valve JA1 and the narrow-slit short-circuit valve JB1 are simultaneously closed for one minute, if LC is larger than or equal to LJ, the narrow-slit short-circuit valve JA2 and the narrow-slit short-circuit valve JB2 are simultaneously closed, and if LC is larger than or equal to LJ3 after four minutes, the needle-shaped throttle main valve.
Thirdly, high-pressure slurry enters a slurry inlet after coming out of a wellhead, is buffered by a slurry buffer plate and is deposited in a solid phase of a ramp formed by slurry deposition ramps, a control valve of a reverse suction type sand discharge pipe is opened at regular time according to the total volume of the solid phase of the number of the scales drilled by the drill bit, and the solid phase of the slurry is discharged out of a solid control tank due to the pressure difference in the tank; the mud flows back to the drilling mud tank via control of the throttle valve.
The specific implementation steps are as follows:
the automatic sand discharge process of the solid control tank A and the solid control tank B comprises two steps:
(1) and when the inlet total pressure gauge YJ displays that the pressure is below 2.5PMa, starting a first automatic process, wherein the first automatic process executes the following operations:
a. simultaneously opening an inlet main valve ZA of a solid control tank A and an inlet main valve ZB of a solid control tank B, after a level meter WA on the solid control tank A and a level meter WB on the solid control tank B respectively indicate that settled sand is in place, sequentially and alternately opening a blow-down valve PA1, a blow-down valve PA2, a blow-down valve PA3 and a blow-down valve PA4 which are communicated with the solid control tank A and a blow-down valve PB1, a blow-down valve PB2, a blow-down valve PB3 and a blow-down valve PB4 which are communicated with the solid control tank B, and sequentially closing and stopping sand discharge after respectively opening thirty seconds; and after waiting for the next time that the level meter WA on the solid control tank A and the level meter WB on the solid control tank B indicate that the sand setting is in place, the solid control tank A and the solid control tank B alternately discharge the sand again.
b. Opening one of a narrow slit short-circuit throttle JA1 and a narrow slit short-circuit throttle JA2 which are communicated with the solid control tank A; simultaneously opening one of a narrow slit short-circuit throttle valve JB1 and a narrow slit short-circuit throttle valve JB2 which are communicated with the solid control tank B; used for automatically controlling the pressure in the solid control tank.
C. And manually adjusting a rear needle-shaped throttle master valve ZJ of the tank to enable the flow of the slurry inlet to be equal to the flow of the slurry pump outlet.
(2) And when the pressure displayed by the inlet total pressure gauge YJ is greater than or equal to 2.5PMa, starting a second automatic process, and executing the following operations by the second automatic process:
a. simultaneously opening an inlet main valve ZA of the solid control tank A and an inlet main valve ZB of the solid control tank B, closing the inlet main valve ZA after a material level meter WA on the solid control tank A indicates that settled sand is in place, sequentially and alternately opening a drain valve PA1, a drain valve PA2, a drain valve PA3 and a drain valve PA4 which are communicated with the solid control tank A, and sequentially closing and stopping sand discharge after respectively opening each twenty seconds; and opening an inlet main valve ZA, waiting for the next time when the level meter WA indicates that the settled sand is in place, and circularly discharging the sand again in the solid control tank A.
b. After the position meter WB on the solid control tank B indicates that the settled sand is in place, closing the inlet main valve ZB, sequentially and alternately opening a drain valve PB1, a drain valve PB2, a drain valve PB3 and a drain valve PB4 which are communicated with the solid control tank B, and after respectively opening twenty seconds, sequentially closing and stopping sand discharge; and opening the inlet main valve ZB, and circularly discharging sand again by the solid control tank B after the next material level meter WB indicates that the sand setting is in place.
c. Closing a narrow slit short-circuit throttle JA1 and a narrow slit short-circuit throttle JA2 which are communicated with the solid control tank A; closing a narrow slit short-circuit throttle valve JB1 and a narrow slit short-circuit throttle valve JB2 which are communicated with the solid control tank B; used for automatically controlling the pressure in the solid control tank.
d. And manually adjusting a rear needle-shaped throttle master valve ZJ of the tank to enable the flow of the slurry inlet to be equal to the flow of the slurry pump outlet.
And fourthly, after drilling in place, estimating the annular volume, filling the annular volume with cement for one time to perform well cementation, enabling the casing type drill rod to be located at the middle position in the shaft, burying the drill bit and the drill collar underground, injecting cement into the ground, then placing a rubber plug in the casing, starting a mud pump of a drilling mud tank to drive the rubber plug to the bottom, replacing the annular volume from the cement to the outside of the casing, and simultaneously rotating the casing type drill rod to ensure that the annular volume is filled with the cement.
Cementing the well by a cement truck, putting a rubber sleeve, pumping mud by a mud pump to enable the cement to be reversely poured to a wellhead surface sleeve, building pressure and waiting to set (and waiting to set when open), and measuring the sound amplitude to see the quality of the well cementation.
The well cementation cement slurry prevents the stratum from diluting the design: because the dynamic stratum pressure is balanced without stopping injection, the danger of stratum loss and stratum effluent dilution exists, density adjusting components such as peach shell plugging agents and glass beads need to be added into cement paste components, and the isolation liquid contains stratum temporary plugging agents and the like.
The qualified well cementation is guaranteed, especially at the oil layer part, by ensuring the well cementation quality to ensure that the casing type drill rod is approximately in the middle position in the shaft. Therefore, when the cementing slurry presses the rubber plug floating hoop to replace the cement slurry, the sleeve type drill rod needs to be rotated, and the full annular space of the cement slurry is ensured.
The method adopts a high-voltage solid control device and has the technical core that: the method is characterized in that a rotary blowout preventer on the ground is used as a main means for balancing the formation pressure (heavy mud is used as a main pressure balancing means in conventional pressurized drilling, and the rotary blowout preventer is used as an auxiliary means), and because a high-pressure solid control device is used, the well can be drilled by clean water, no or little mud is used for balancing the formation pressure, and a series of problems of blowout, leakage, small circulation and the like between underground formations are avoided.
Claims (3)
1. The method is characterized in that the non-stop well drilling is a pressure balance drilling method, the method adopts a high-pressure solid control device for performing formation pressure balance and sand discharge, and adopts a casing type drill rod to perform non-stop well drilling, the high-pressure solid control device comprises a solid control tank communicated with a pipeline, a main body of the solid control tank is provided with a slurry inlet, a compressed gas inlet, a reverse suction type sand discharge pipe, a slurry solid discharge port, a slurry buffer plate, a slurry baffle, a slurry deposition ramp, a gas vent and a slurry outlet, and the method comprises the following steps:
firstly, drilling without stopping injection by using a casing type drill rod according to a casing drilling mode;
secondly, after a high-pressure layer is uncovered, closing a well and building pressure, after an annular pressure value is obtained, opening an inlet main valve, and controlling a throttle valve according to parameters of a mud inlet-outlet flow meter to enable the parameters of the mud inlet-outlet flow meter to be equal;
thirdly, high-pressure slurry enters a slurry inlet after coming out of a wellhead, the high-pressure slurry entering the slurry inlet is buffered by a slurry buffer plate, ramp solid phase deposition is formed on a slurry deposition ramp, a control valve of a reverse suction type sand discharge pipe of the solid control tank is opened at regular time according to the total volume of the solid phase of the drilling ruler number of the drill bit, and the slurry solid phase is discharged out of the solid control tank due to the pressure difference in the tank; the mud flows back to the drilling mud tank through the control of the throttle valve;
and fourthly, after drilling in place, estimating the annular volume, filling the annular volume with cement for one time to perform well cementation, enabling the casing type drill rod to be located at the middle position in the shaft, burying the drill bit and the drill collar underground, injecting cement into the ground, then placing a rubber plug in the casing, driving a mud pump of a drilling mud tank to drive the rubber plug to the bottom, replacing the cement to the annular space outside the casing, and simultaneously rotating the casing type drill rod to ensure that the annular space is filled with the cement.
2. The method for drilling without stopping injection for oilfield drilling according to claim 1, wherein one or more solid control tanks are adopted, each solid control tank is provided with a back suction type sand discharge pipe, a slurry buffer plate is fixed on a solid control tank main body behind a slurry inlet, a slurry sedimentation ramp is fixed at the bottom of the solid control tank, and a slurry baffle plate is arranged on the slurry sedimentation ramp.
3. The method as claimed in claim 1, wherein the casing-type drill pipe comprises a plurality of casings, each two casings are connected with the casing female head in a threaded sealing manner through the casing male head, and a step is arranged between the casing male head and the casing female head for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229670.5A CN109403861B (en) | 2018-10-22 | 2018-10-22 | Non-stop drilling method for oil field drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229670.5A CN109403861B (en) | 2018-10-22 | 2018-10-22 | Non-stop drilling method for oil field drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109403861A CN109403861A (en) | 2019-03-01 |
| CN109403861B true CN109403861B (en) | 2020-02-14 |
Family
ID=65468787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229670.5A Active CN109403861B (en) | 2018-10-22 | 2018-10-22 | Non-stop drilling method for oil field drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403861B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110604121B (en) * | 2019-09-19 | 2021-08-24 | 国网山东省电力公司青岛供电公司 | Timely-driving windmill bird repeller and control method |
| CN113404430A (en) * | 2021-05-27 | 2021-09-17 | 中国一冶集团有限公司 | Safe embedding method of freezing pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2737935Y (en) * | 2004-10-25 | 2005-11-02 | 甘肃圣邦电子科技有限公司 | Oil field water injection well flow regulating valve |
| CN203669803U (en) * | 2013-11-27 | 2014-06-25 | 中曼石油天然气集团股份有限公司 | Tank bottom valve device of solid-phase control tank |
| CN104453716A (en) * | 2014-11-10 | 2015-03-25 | 张朝纯 | Compound double-circulation under-balanced casing pipe while-drilling drilling technology |
| CN106120717A (en) * | 2016-06-28 | 2016-11-16 | 东南大学 | Control modulus stake band pressure balanced pile making method |
| US9664003B2 (en) * | 2013-08-14 | 2017-05-30 | Canrig Drilling Technology Ltd. | Non-stop driller manifold and methods |
| CN108267391A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | Experimental device and method for evaluating underground gas-proof tool of mechanical production well |
| WO2018136573A1 (en) * | 2017-01-18 | 2018-07-26 | Schlumberger Technology Corporation | Non-stop circulation system for maintaining bottom hole pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130182098A1 (en) * | 2012-01-13 | 2013-07-18 | Multi-Shot, Llc | Downhole Digital Survey Camera |
-
2018
- 2018-10-22 CN CN201811229670.5A patent/CN109403861B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2737935Y (en) * | 2004-10-25 | 2005-11-02 | 甘肃圣邦电子科技有限公司 | Oil field water injection well flow regulating valve |
| US9664003B2 (en) * | 2013-08-14 | 2017-05-30 | Canrig Drilling Technology Ltd. | Non-stop driller manifold and methods |
| CN203669803U (en) * | 2013-11-27 | 2014-06-25 | 中曼石油天然气集团股份有限公司 | Tank bottom valve device of solid-phase control tank |
| CN104453716A (en) * | 2014-11-10 | 2015-03-25 | 张朝纯 | Compound double-circulation under-balanced casing pipe while-drilling drilling technology |
| CN106120717A (en) * | 2016-06-28 | 2016-11-16 | 东南大学 | Control modulus stake band pressure balanced pile making method |
| CN108267391A (en) * | 2016-12-30 | 2018-07-10 | 中国石油天然气股份有限公司 | Experimental device and method for evaluating underground gas-proof tool of mechanical production well |
| WO2018136573A1 (en) * | 2017-01-18 | 2018-07-26 | Schlumberger Technology Corporation | Non-stop circulation system for maintaining bottom hole pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109403861A (en) | 2019-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101864921B (en) | Well completion and oil production string of horizontal well and well completion and oil production processes thereof | |
| CN110118069B (en) | Ultra-deep well drilling pressure control equipment and operation method | |
| US4429746A (en) | Method and apparatus for disposing of drilling muds and wastes generated during well drilling operations and for plugging and abandoning the well | |
| CN109736737B (en) | Method for snubbing tripping of reservoir gas drilling well | |
| CN109403861B (en) | Non-stop drilling method for oil field drilling | |
| CN104141470A (en) | Pore-forming and sealing method for hydraulic fracturing borehole casing section in underground coal mine | |
| CN110608005B (en) | Gas lift reverse circulation drilling system and automatic control method | |
| CN109236231B (en) | Grouting device for plugging water burst in bare hole section crack in mine drilling | |
| CN103352673A (en) | Monocular twin-well surface layer well cementation technology | |
| RU2751619C1 (en) | Sublevel filling tool for horizontal borehole, sublevel water control tool, and method for sublevel filling and sublevel water control | |
| RU2576422C1 (en) | Method of physical abandonment of wells | |
| CN111305795A (en) | Method for applying cannula bridge plug lower tube pump | |
| CN108194071A (en) | 3 very little half sidetracking slim hole staged fracturing string | |
| RU2611792C1 (en) | Method for isolation of watered intervals in horizontal section of wellbore | |
| CN112360368B (en) | Oil well water plugging method | |
| CN112443288B (en) | Experimental device for evaluating sealing capacity of two interfaces of well cementation cement sheath | |
| US6302214B1 (en) | Apparatus and method for inflating packers in a drilling well | |
| CN115653536B (en) | Circulating pressure control method and system for liquid rubber plug packing production layer in drilling process | |
| CN215804489U (en) | Reverse gravel filling device | |
| CN114763732A (en) | Pressure control casing drilling method for underground injection pressure containing stratum | |
| CN110725664B (en) | Slurry stopping mechanism for well sealing and well sealing method thereof | |
| RU2614833C1 (en) | Template cementing method during well construction | |
| RU2386776C1 (en) | Method of opening of waterbearing stratum in unstable rocks by upward borehole and device for its implementation | |
| RU2354802C1 (en) | Method for well repair | |
| CN111594126A (en) | Sand-filling layered fracturing method for coiled tubing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jin Feng Inventor after: Lin Jiang Inventor after: Lin Song Inventor after: Wen Lei Inventor after: Shen Biao Inventor after: Wen Tao Inventor after: Yang Junqi Inventor before: Jin Feng Inventor before: Lin Jiang Inventor before: Lin Song Inventor before: Wen Lei |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |