CN104500057A - Testing method of liquid producing profile of horizontal well - Google Patents
Testing method of liquid producing profile of horizontal well Download PDFInfo
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- CN104500057A CN104500057A CN201410722644.1A CN201410722644A CN104500057A CN 104500057 A CN104500057 A CN 104500057A CN 201410722644 A CN201410722644 A CN 201410722644A CN 104500057 A CN104500057 A CN 104500057A
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 18
- 239000003129 oil well Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000003801 milling Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract 1
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a testing method of a liquid producing profile of a horizontal well. The testing method sequentially comprises the following steps: placing a horizontal well of tubular column well completion staged fracturing production to remove a driving sliding sleeve inner ball seat through drilling milling of the horizontal well, releasing a sampling tubular column, swabbing, dragging, re-swabbing to take a liquid produced by each to-be-tested stage in a to-be-tested layer of the horizontal well, metering according to a liquid producing amount of the produced liquid, accurately testing a water content, analyzing a liquid producing characteristic of the to-be-tested section corresponding to the output so as to realize staged swabbing of the to-be-tested layer and improve the swabbing pressure of single-time swabbing as well as achieve the testing of the liquid producing profile of the horizontal pumping well with low yield. Meanwhile, in the whole swabbing process, the to-be-tested sections corresponding to all sections of driving sliding sleeve device are swabbed through the sampling tubular column; the sampling tubular column is simple in structure and convenient to use, therefore, the cost of testing the whole liquid producing profile is reduced, and a technical support is provided for testing and governing of the liquid producing profile of the high-water-content horizontal well in an oil field.
Description
Technical field
The invention belongs to oilfield exploitation technical field, particularly relate to a kind of method of testing of horizontal well production profile.
Background technology
In recent years, along with the development of horizontal well technology, horizontal well development has become the important channel of improving well yield, suggestions for improvement and raising recovery ratio, and especially the staged fracturing renovation technique of horizontal well makes unconventional fine and close oil gas economic development become a reality.At present, it is 5 1/2 that compact oil reservoir develops main completion mode " casing cementing completion and bore hole preset tubing string completion (preset 4 1/2 " sleeve pipe, open hole packer and pitching fracturing sliding bush), casing cementing completion adopts pumping bridging plug staged fracturing technique and coiled tubing band underseal to drag staged fracturing technique; Preset tubing string then adopts pitching staged fracturing technique.After adopting staged fracturing of horizontal well to go into operation, improve compact oil reservoir well yield greatly, but there is large quantities of horizontal well causing output to reduce fast because of moisture rising in manufacturing process, and due to cannot water exit position be judged after water outlet, water blockoff measure targetedly cannot be carried out, cause whole development weak effect.
For the water exit position of determined level well, existing method the most accurately and effectively implements producing profile testing, according to test interpretation result determination water exit position to horizontal well production section.For horizontal well produced fluid cross section, large quantifier elimination and experiment work are done both at home and abroad.But due to the exceptional well body structure of horizontal well and particular/special requirement when surveying production profile, cause the lifting when conveying of produced fluid cross section tester and test to remain a difficult problem for horizontal well produced fluid cross section, the method for testing of the production profile of dissimilar horizontal well is as follows:
1) water spraying horizontal well mainly carries out the conveying of tester by crawl device or coiled tubing, and the test of production profile is carried out on blowing production limit, limit;
2) cannot blowing, but the horizontal well that Liquid output is large, mainly by gaslift lifting, crawl device or coiled tubing carry out the conveying of tester, and the test of production profile is carried out on gaslift production limit, limit;
3) Liquid output is little, large sleeve pipe (9 5/8 " and more than) or large sleeve pipe (9 5/8 " and more than) is adopted to hang the horizontal well of small casing (5 1/2 " or 7 ") completion, dual string can be utilized to carry out the test of horizontal well production profile, pumping pipe string carries out lifting, and crawl device or coiled tubing connecting test instrument are transported to horizontal well test section by test string;
4) to 7, " jacketing machine draws water the test of horizontal well production profile, and be utilize simulation oil pumper liquid production section test device to carry out lifting, crawl device is taken instrument to be tested and is delivered to test section through this device, the test of carrying out horizontal well production profile when simulation oil pumping is produced.
In a word, existing horizontal well produced fluid cross section method is more easily implemented in large sleeve pipe or the high horizontal well of output, and for employing 5 1/2 " casing cementing completion or bore hole preset tubing string completion and the horizontal well of the not high compact oil reservoir exploitation of output; need setting-up eccentricity well head when utilizing annulus logging technology to judge water exit position; means of delivery enters under being difficult in annular space, cannot successful implementation; As utilized Gas lift test technology, then require that oilwell produced fluid amount is high; As utilized pump measuring technology, by the restriction of string size, crawl device cannot pass through oil well pump, and therefore, the horizontal well of existing compact oil reservoir exploitation exists the problem of producing profile testing difficulty, affects normally carrying out with the oilfield exploitation of horizontal well development.
Summary of the invention
The object of this invention is to provide a kind of method of testing of horizontal well production profile, be intended to solve the problem of the horizontal well water exploration difficulty of the compact oil reservoir exploitation that horizontal well produced fluid cross section method restricted application in prior art causes.
In order to realize above object, in the present invention, the technical scheme of the method for testing of horizontal well production profile is as follows:
The method of testing of horizontal well production profile, comprises the following steps:
Step one, stops taking out, pressure release, tears well head open, trip out flow string in well;
Step 2, is milled the ball seat in pitching sliding bush apparatus each in the horizontal segment of preset tubing string by brill and removes;
Step 3, sampling tubing string is dropped in the horizontal segment of preset tubing string, sampling tubing string is made to be in the outer tube of a joint sliding bush apparatus, sampling tubing string comprises setting within the outer tube along well depth direction successively interval, rear packer and before being fixed on, feed tube between rear packer, before, distance between rear packer is not more than the length of the outer tube of sliding bush apparatus, the rear end of rear packer is provided with the plugging structure for sealing up its rear end opening, the front end of front packer is connected to the below of the oil well pump of the vertical section input of preset tubing string by oil pipe, the tube wall of feed tube offers inside and outside inlet,
Step 4, by the fluid in oil well pump outside pumping sampling tubing string, must sample the liquid of to be measured section of output corresponding to the sliding bush apparatus that saves residing for tubing string from wellhead;
Step 5, the forward and backward packing tubing string of deblocking, drags sampling tubing string to corresponding to be measured section of another joint sliding bush apparatus along well depth direction or along well depth rightabout, and by forward and backward packer setting;
Step 6, repeats step 4, the liquid of the to be measured section of output that sliding bush apparatus is corresponding residing for pumping sampling tubing string.
Pitching sliding bush apparatus has more than three joints, after step 6, repeats step 4, five, six, until the product fluid of to be measured section corresponding to each pitching sliding bush apparatus is all by pumping.
Pressure reduction sliding sleeve section occurrence characteristics utilizes the total production feature of former horizontal well all production section and whole pitching sliding sleeve sectionalization test occurrence characteristics to contrast and draws.
After step 2, sampling tubing string is dragged successively backward or is dragged successively forward from most deutomerite pitching sliding bush apparatus from the most prosthomere pitching sliding bush apparatus of the horizontal segment of preset tubing string.
Front packer connects oil well pump by releasing device.
Forward and backward packer is hydraulic buckling packer.
The horizontal well that in the present invention, preset tubing string completion staged fracturing is gone into operation mills except ball seat in pitching sliding sleeve-inputs samples the pumping of tubing string-pumping-dragging-again to the liquid of each to be measured section of output in the layer to be tested taking out horizontal well through boring successively, according to the liquid producing amount measure of product fluid, the accurate chemical examination of moisture, rate root, analyze the Fluid Producing Property of corresponding to be measured section of output, thus realize treating test layer segmentation pumping, improve the swabbing pressure of single pumping, the producing profile testing of the horizontal well that especially draws water for the machine that output is not high; Simultaneously, in whole pumping process, by sampling tubing string, pumping is carried out to corresponding to be measured section of each joint sliding bush apparatus, the structure of sampling tubing string is simple, easy to use, thus reduce the expense of whole producing profile testing, for oil field High water cut horizontal well produced fluid cross section and improvement provide technical guarantee.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the present invention;
Fig. 2 is the structural representation sampling tubing string in Fig. 1.
1-oil pumper, 2-production wellhead, 3-external diameter 177.8mm sleeve pipe, 4-external diameter 73mm N80 external upset tubing, pump barrel and pump plunger in 5-sucker rod, insert pump, the outer pump barrel of 6-insert pump, 7-hanging packer, 8-open hole packer, 9-bores the pitching sliding sleeve after milling, 10-pressure reduction sliding sleeve, 11-external diameter 114.3mm sleeve pipe, 12-samples tubing string, 13-safety joint, 14-hydraulic releasing tool, 15-circulating sub, 16-seating and sealing unit, swell packers before 17-, 18-
1/
4" stainless steel controls pipeline, 19-feed tube, swell packers after 20-, 21-blind plugging, 22-external diameter 60.3mm N80 additional thicker strip chamfering oil pipe.
Detailed description of the invention
The embodiment of the method for testing of horizontal well production profile in the present invention: as shown in Figure 1 and Figure 2, the method is a kind of horizontal well production profile sectionalization test method, comprises the following steps:
1, pit shaft prepares: stop taking out, pressure release, dismounting horizontal well to be tested well head, trip out former well flow string;
2, bore milling ball seat: enter drill bit under in preset tubing string, bored to mill by the ball seat in each pitching sliding bush apparatus from outer tube and remove;
3, throw in sampling tubing string: to preset tubing string, throw in sampling tubing string from well head, and make to sample tubing string and be devoted in the outer tube of most deutomerite pitching sliding bush apparatus, described sampling tubing string comprises the blind plugging be connected in series successively from back to front, rear packer, sampling screen casing, front packer, seating and sealing unit, circulating sub, releasing device, safety joint, front packer and rear packer are hydraulic buckling packer and bridge joint has the stainless steel being in sampling screen casing periphery to control pipeline between, sampling screen casing is the feed tube of whole sampling tubing string, sieve aperture on the tube wall of sampling screen casing is the inlet of feed tube, there is the sampling oil pipe be connected with oil well pump safety joint front end, sampling oil pipe is 60.3mm additional thicker strip chamfering oil pipe,
4, sampling tubing string sets: well head connects pump truck, 28MPa is suppressed in test oil pipe, make to sample the front packer of tubing string and rear packer inflation and the most inner chamber of deutomerite pitching sliding bush apparatus and the inner chamber of other joint sliding bush apparatus are separated, separate by be measured section of layer to be tested and other production sections, and continue to be forced into 2 ~ 3t in sampling tubing string, to make the descent of piston in seating and sealing unit, highly pressurised liquid trap is completed in mandrel and packing element annular space and sets;
5, pumping: enter the pumping instrument combined by pump barrel in sucker rod, insert pump and pump plunger under in 73mm N80 external upset tubing, and product is asked in pumping of starting shooting after extension is taken out, moisture, the rate root of sample analysis production fluid every day, metering output liquid measure, analyzes this to be measured section of occurrence characteristics;
6, drag deblocking sampling tubing string: stop taking out after production fluid sampling is qualified, terminate this test of to be measured section, trip out sucker rod, pump plunger and interior pump barrel, on carry and the deblocking sampling front packer of tubing string and rear packer, and drag adjacent to be measured section of the supreme joint of sampling tubing string;
7, repeat step 4 ~ 6 until complete the test jobs of all to be measured section of layer to be tested.
The object of boring milling ball seat in the present embodiment be in order to sampling tubing string smooth under enter to provide passage.The outer pump barrel of insert pump and be produce tubing string with upper part, the function of flow string is before entering sucker rod, insert pump plunger and interior pump barrel under realizing, can suppress and realize straddle packer and effectively set, enter sucker rod, insert pump plunger and interior pump barrel under after setting and produce.The function of sample analysis is the product fluid being obtained test zone by wellhead, and carries out the accurate-metering of output, the accurate chemical examination of moisture, rate root, analyzes occurrence characteristics.
In the above-described embodiments, the existing ball-throwing type sliding bush apparatus of sliding bush apparatus, there is again differential sliding bush apparatus, wherein differential sliding bush apparatus only has one, and ball-throwing type sliding bush apparatus has four, in other embodiments, sliding bush apparatus is also necessary for one or more ball-throwing type sliding bush apparatus and a differential sliding bush apparatus combination, and wherein the sliding bush apparatus at horizontal well B target spot first fracturing section place is necessary for differential sliding bush apparatus.
In the above-described embodiments, sliding bush apparatus is five joints, and in other embodiments, sliding bush apparatus also can be more than 2 ~ 5 joints or 5 save.
Based on other embodiments above, when sliding bush apparatus is two, in the present embodiment, the method for testing of horizontal well production profile is by following steps embodiment:
Step one, pit shaft prepares: stop taking out, pressure release, dismounting horizontal well to be tested well head, trip out former well flow string;
Step 2, bores milling ball seat: enter drill bit under in preset tubing string, bored to mill by the ball seat in each pitching sliding bush apparatus and remove from outer tube;
Step 3, sampling tubing string is dropped in the horizontal segment of preset tubing string, sampling tubing string is made to be in the outer tube of a joint pitching sliding bush apparatus, sampling tubing string comprises setting within the outer tube along well depth direction successively interval, rear packer and before being fixed on, feed tube between rear packer, before, distance between rear packer is not more than the length of the outer tube of sliding bush apparatus, the rear end of rear packer is provided with the plugging structure for sealing up its rear end opening, the front end of front packer is connected to the below of the oil well pump of the vertical section input of preset tubing string by oil pipe, the tube wall of feed tube offers inside and outside inlet,
Step 4, by the fluid in oil well pump outside pumping sampling tubing string, must sample the liquid of to be measured section of output corresponding to the pitching sliding bush apparatus that saves residing for tubing string from wellhead; Contrast total production fluid situation analysis pressure reduction sliding sleeve place output section feature.
Claims (5)
1. the method for testing of horizontal well production profile, is characterized in that, comprises the following steps:
Step one, stops taking out, pressure release, tears well head open, trip out flow string in well;
Step 2, is milled the ball seat in pitching sliding bush apparatus each in the horizontal segment of preset tubing string by brill and removes;
Step 3, sampling tubing string is dropped in the horizontal segment of preset tubing string, sampling tubing string is made to be in the outer tube of a joint sliding bush apparatus, sampling tubing string comprises setting within the outer tube along well depth direction successively interval, rear packer and before being fixed on, feed tube between rear packer, before, distance between rear packer is not more than the length of the outer tube of sliding bush apparatus, the rear end of rear packer is provided with the plugging structure for sealing up its rear end opening, the front end of front packer is connected to the below of the oil well pump of the vertical section input of preset tubing string by oil pipe, the tube wall of feed tube offers inside and outside inlet,
Step 4, by the fluid in oil well pump outside pumping sampling tubing string, must sample the liquid of to be measured section of output corresponding to the sliding bush apparatus that saves residing for tubing string from wellhead;
Step 5, the forward and backward packing tubing string of deblocking, drags sampling tubing string to corresponding to be measured section of another joint sliding bush apparatus along well depth direction or along well depth rightabout, and by forward and backward packer setting;
Step 6, repeats step 4, the liquid of the to be measured section of output that sliding bush apparatus is corresponding residing for pumping sampling tubing string.
2. the method for testing of horizontal well production profile according to claim 1, is characterized in that, sliding bush apparatus has more than three joints, after step 6, repeats step 4, five, six, until the product fluid of to be measured section corresponding to each pitching sliding bush apparatus is all by pumping.
3. the method for testing of horizontal well production profile according to claim 2, it is characterized in that, after step 2, sampling tubing string is dragged successively backward or is dragged successively forward from most deutomerite pitching sliding bush apparatus from the most prosthomere pitching sliding bush apparatus of the horizontal segment of preset tubing string.
4. the method for testing of horizontal well production profile as claimed in any of claims 1 to 3, is characterized in that, front packer connects oil well pump by releasing device.
5. the method for testing of horizontal well production profile as claimed in any of claims 1 to 3, is characterized in that, forward and backward packer is hydraulic buckling packer.
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| CN201410722644.1A CN104500057A (en) | 2014-12-03 | 2014-12-03 | Testing method of liquid producing profile of horizontal well |
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| CN201410722644.1A CN104500057A (en) | 2014-12-03 | 2014-12-03 | Testing method of liquid producing profile of horizontal well |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134182A (en) * | 2015-09-08 | 2015-12-09 | 中国石油天然气股份有限公司 | Production fluid profile testing pipe column dragged by submersible linear motor and method |
| CN105569635A (en) * | 2015-12-31 | 2016-05-11 | 中国石油天然气股份有限公司 | Horizontal well liquid production section testing technology process pipe column and testing method |
| CN106593422A (en) * | 2016-12-01 | 2017-04-26 | 中国石油天然气股份有限公司 | Storage type testing method in oil pipe of horizontal well and pipe column |
| WO2019113679A1 (en) * | 2017-12-13 | 2019-06-20 | Source Rock Energy Partners Inc. | Inflow testing systems and methods for oil and/or gas wells |
| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN110017133A (en) * | 2019-05-23 | 2019-07-16 | 广州海洋地质调查局 | A kind of test of horizontal well production profile and shutoff method and device |
| CN110206531A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well production profile test method and device |
| CN110206540A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of horizontal well annular space production profile test method and device |
| CN110242275A (en) * | 2019-05-23 | 2019-09-17 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well wears cable production and cuts open test method and device |
| CN110608033A (en) * | 2019-10-29 | 2019-12-24 | 中国石油化工股份有限公司 | Shale gas horizontal well single-section testing mechanism and horizontal well single-section testing method |
| CN110617054A (en) * | 2019-09-17 | 2019-12-27 | 中国石油天然气股份有限公司 | Oil field horizontal well sectional testing pipe column and method |
| CN111852428A (en) * | 2020-08-03 | 2020-10-30 | 中国石油天然气股份有限公司 | Method for fracturing outer packing and coiled tubing in combined operation |
| CN113027430A (en) * | 2021-04-29 | 2021-06-25 | 佘国强 | Horizontal well fluid production section testing pipe column and process based on tracer marking |
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| CN106593422A (en) * | 2016-12-01 | 2017-04-26 | 中国石油天然气股份有限公司 | Storage type testing method in oil pipe of horizontal well and pipe column |
| WO2019113679A1 (en) * | 2017-12-13 | 2019-06-20 | Source Rock Energy Partners Inc. | Inflow testing systems and methods for oil and/or gas wells |
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| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN110242275A (en) * | 2019-05-23 | 2019-09-17 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well wears cable production and cuts open test method and device |
| CN110206540A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of horizontal well annular space production profile test method and device |
| CN110206531A (en) * | 2019-05-23 | 2019-09-06 | 广州海洋地质调查局 | A kind of oil pipe of horizontal well production profile test method and device |
| CN110017133A (en) * | 2019-05-23 | 2019-07-16 | 广州海洋地质调查局 | A kind of test of horizontal well production profile and shutoff method and device |
| CN110206540B (en) * | 2019-05-23 | 2024-04-02 | 广州海洋地质调查局 | Method and device for testing annular output profile of horizontal well |
| CN110206531B (en) * | 2019-05-23 | 2024-04-09 | 广州海洋地质调查局 | Method and device for testing output profile of horizontal well oil pipe |
| CN110242275B (en) * | 2019-05-23 | 2024-04-19 | 广州海洋地质调查局 | Horizontal well oil pipe cable penetrating production profile test method and device |
| CN110017133B (en) * | 2019-05-23 | 2024-05-10 | 广州海洋地质调查局 | Method and device for testing output profile of horizontal well and plugging water |
| CN110617054A (en) * | 2019-09-17 | 2019-12-27 | 中国石油天然气股份有限公司 | Oil field horizontal well sectional testing pipe column and method |
| CN110617054B (en) * | 2019-09-17 | 2022-08-30 | 中国石油天然气股份有限公司 | Oil field horizontal well sectional testing pipe column and method |
| CN110608033A (en) * | 2019-10-29 | 2019-12-24 | 中国石油化工股份有限公司 | Shale gas horizontal well single-section testing mechanism and horizontal well single-section testing method |
| CN111852428A (en) * | 2020-08-03 | 2020-10-30 | 中国石油天然气股份有限公司 | Method for fracturing outer packing and coiled tubing in combined operation |
| CN113027430A (en) * | 2021-04-29 | 2021-06-25 | 佘国强 | Horizontal well fluid production section testing pipe column and process based on tracer marking |
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