JPS6138011A - Setting of entrance device by deck-elevating type offshore working platform - Google Patents

Setting of entrance device by deck-elevating type offshore working platform

Info

Publication number
JPS6138011A
JPS6138011A JP15896084A JP15896084A JPS6138011A JP S6138011 A JPS6138011 A JP S6138011A JP 15896084 A JP15896084 A JP 15896084A JP 15896084 A JP15896084 A JP 15896084A JP S6138011 A JPS6138011 A JP S6138011A
Authority
JP
Japan
Prior art keywords
deck
template
seabed
templet
rig
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.)
Granted
Application number
JP15896084A
Other languages
Japanese (ja)
Other versions
JPH0332650B2 (en
Inventor
Hiromitsu Tateishi
立石　洋光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Ocean Development and Engineering Co Ltd
Original Assignee
Mitsui Ocean Development and Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Ocean Development and Engineering Co Ltd filed Critical Mitsui Ocean Development and Engineering Co Ltd
Priority to JP15896084A priority Critical patent/JPS6138011A/en
Publication of JPS6138011A publication Critical patent/JPS6138011A/en
Publication of JPH0332650B2 publication Critical patent/JPH0332650B2/ja
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
    • E02B17/021—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto with relative movement between supporting construction and platform
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B2017/0056—Platforms with supporting legs
    • E02B2017/006—Platforms with supporting legs with lattice style supporting legs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Abstract

PURPOSE:To reduce the cost of installation by a method in which while a templet is housed in the downside of an open-sided working deck, the deck is towed, a deck-elevating type rig is installed, the deck is extended outwards, and an entrance device is attached to the templet and installed on the seabed. CONSTITUTION:While a templet 29 is housed in the downside of an open-sided working deck 14, a deck-elevating type rig 10 is towed to a given site, and leg columns 12 are landed on the seabed, and the rig 10 is raised along the leg columns 12. The deck 14 is extended outwards from the stern, the templet 20 is lowered to a given position, a device, e.g., a blow-off preventer, etc., is attached to the upper part of the templet 20, and a fitting part for a guide wire and the guide wire are attached to the templet 20. A winch provided to a tower device 16 is operated to lower the templet 20 to the seabed through the guide wire, and a drill device 26 is lowered. Excavation is made by the drill device 26, and cement is injected into the opening of the drill to fix the templet 20.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は甲板昇降型海上作業台による坑口装置の設置
法に関する。さらに詳しく述べると、海底石油掘さくの
ための海上作業台としてジャック・アップ・リグ（Ｊａ
ｃｋ　−ｕＤ　　Ｒｔｏ＞により坑口装置を海底に設置
する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for installing a wellhead device using a deck-elevating offshore work platform. To explain in more detail, a jack-up rig (Japanese) is used as an offshore platform for drilling for offshore oil.
ck -uD Rto> relates to a method of installing a wellhead device on the seabed.

〔従来の技術〕[Conventional technology]

海上作業台を所望の場所にまで曳航した後に海面上に固
定し海底の石油などを掘さくするために、甲板昇降型海
上作業台、すなわちジャック・アップ・リグが用いられ
ている。この種甲板昇降型リグは、一般にその稼動水深
が１０ないし９０メ一トル程度の場所に用いられていた
。A jack-up rig, which is a deck elevating type offshore work platform, is used to tow the offshore work platform to a desired location and then fix it above the sea surface to dig for oil or the like on the seabed. This type of deck elevating rig was generally used in locations where the operating depth was approximately 10 to 90 meters.

ところで、海底資源とくに海底石油掘さくの場所は、近
年次第に深海域にまで及び水深が１２０メートルを越す
領域に達してきている。このような深海での作業にＱい
ては、従来、甲板昇降型リグに代って、船便リグ、半潜
水型リグ、あるいは海底設置ヤグラ型石油掘さく装置を
使用して作業していた。Incidentally, in recent years, the locations for drilling for seabed resources, particularly seabed oil, have gradually extended to deep sea areas, reaching areas where the water depth exceeds 120 meters. For such deep-sea work, conventionally, instead of deck elevating rigs, marine rigs, semi-submersible rigs, or seabed-mounted dove-shaped oil drilling equipment have been used.

以上に述べた深海での石油掘さく作業に当っては、海底
に坑口装置として掘さく部位を設定するテンプレート（
Ｔ　ｅｍｐｌａｔｅ　）を固定し、テンプレートにドリ
ル・パイプ等を連結しなければならない。In the deep sea oil drilling work described above, a template (
T emplate ) must be fixed and a drill pipe or the like must be connected to the template.

テンプレートは、その長さが、例えば２４メートル、幅
が凡そ６メートルもあり、重量が１４０トンあるいはそ
れ以上に及ぶものである。The template has a length of, for example, 24 meters, a width of approximately 6 meters, and a weight of 140 tons or more.

こうした大型で大重量のテンプレートを海底に設置する
ために、これを掘さく位置にまで運搬し据え付ける場合
、船便リグでは、掘さく作業のための船体の開口（ムー
ンプール・Ｍ　ｏｏｎｐｏｏｌ　）が十分に大きくない
ため、これを搭載して操作することができない。In order to install such a large and heavy template on the seabed, when transporting it to the excavation position and installing it, a marine rig must have a sufficient opening (moonpool) in the hull for the excavation work. Since it is not large, it cannot be installed and operated.

また、半潜水型リグでは作業台と水中に没している浮体
とを補強構造体で連結してあり、テンプレートを搭載、
し、これを海底に引き下ろしたりする操作を行なうこと
ができない。In addition, in semi-submersible rigs, the work platform and the floating body submerged in the water are connected by a reinforcing structure, and a template is installed.
However, operations such as lowering it to the seabed cannot be performed.

したがって、これらのリグにおいては、別途、クレーン
船を利用して、テンプレートを海底に設置していた。こ
れは経済的に多くの負担となるものであった。さらに、
テンプレートを設置した後、リグをテンプレートに対し
て正しく位置づけるために、例えば多数の音響測深器を
使用する必要がある。Therefore, in these rigs, a separate crane ship was used to install the template on the seabed. This was a huge financial burden. moreover,
After installing the template, it may be necessary to use, for example, multiple echo sounders to correctly position the rig relative to the template.

［発明の目的］ 以上の諸点と、最近、甲板昇降型海上作業台を浅海で比
較的平穏な海域から次第に深海かつ海象条件の厳しい海
域で使用することが望まれるに至ったこととにかんがみ
て、この発明は甲板昇降型海上作業台において、これま
で使用されなかった坑口装置を設置する方法を提供する
ことにある。[Purpose of the Invention] In view of the above points and the fact that it has recently become desirable to use a deck elevating type offshore work platform from shallow and relatively calm sea areas to deep sea and sea areas with severe sea conditions. The object of this invention is to provide a method for installing a wellhead device, which has not been used hitherto, in a deck elevating type offshore work platform.

この発明の目的はクレーン船あるいは音響測深器などを
使用することなく、甲板昇降型海上作業台によって坑口
装置、とくにテンプレートを設置する方法を提供するこ
くにある。An object of the present invention is to provide a method for installing a wellhead device, particularly a template, using a deck elevating offshore work platform without using a crane ship or an echo sounder.

この発明のさらに目的とするところは、深海底の石油掘
さくに際して甲板昇降型海上作業台を用いて経済的な作
業を実施するために坑口装置を運搬、収納、設置などす
る方法を提供することにある。A further object of the present invention is to provide a method for transporting, storing, and installing wellhead equipment in order to carry out economical work using a deck-elevating offshore work platform when drilling for oil on the deep seabed. It is in.

［発明の構成］ この発明は甲板昇降型海上作業台によって、深海底に油
井掘さく用のテンプレートを設置し、これに適当な吹出
し防止装置（３１０ＷＯＬＩｔ　　ｐ　ｒｅｖｅｎｔｅ
ｒ−略称・ＢＯＰ）を取り付け、さらに１井用導管等を
接続するために坑口装置を設置する方法を提供するもの
である。[Structure of the Invention] This invention installs a template for drilling an oil well on the deep seabed using a deck-elevating offshore working platform, and installs an appropriate blow-out prevention device (310 WOL It Prevente) on this template.
The present invention provides a method for installing wellhead equipment for installing a wellhead (r-abbreviation: BOP) and connecting a single-well conduit, etc.

この発明の方法を図面について詳細に説明する。The method of the invention will be explained in detail with reference to the drawings.

第１図はこの発明の方法に適用する甲板昇降型海上作業
台（リグ）１０の略斜視図であって、昇降型リグ１０は
少くとも３本の脚柱１２を具備する。脚柱１２の各々は
リグ１０を貫通して垂直方向に伸長し、リグ１０を所望
の作業位置に設置するまでは、脚柱１２は上方に引き上
げられて、リグ１０が水上面に浮かび、適当な曳航用船
によって航行され、現場に到達すると、脚柱１２が海底
に達するように引き下げられ、ざらにリグ１０が海面よ
り上方に上昇されて作業状態に入ることができる。FIG. 1 is a schematic perspective view of a deck elevating type offshore work platform (rig) 10 applied to the method of the present invention, and the elevating type rig 10 is equipped with at least three pillars 12. Each of the pedestals 12 extends vertically through the rig 10, and until the rig 10 is placed in the desired working position, the pedestals 12 are pulled upwardly so that the rig 10 floats on the surface of the water and is properly positioned. Once on site, the pedestal 12 is lowered to reach the seabed and the rig 10 is raised roughly above the sea level so that it can be put into working condition.

昇降型リグ１０には甲板に沿って水平方向に移動して、
リグ１０の船尾より外方に張り出すことができるように
構成した片持ち作業甲板１４が配設しである。片持ち作
業甲板１４には海底油井掘さく用のドリル装置お！びそ
の補機を搭載す２゛ためのウィンチ装置などを取り付け
る塔装置１もが設けである。The elevating rig 10 moves horizontally along the deck,
A cantilevered working deck 14 is provided so as to be able to extend outward from the stern of the rig 10. On the cantilever work deck 14, there is a drill equipment for drilling submarine oil wells! A tower device 1 is also provided to which a winch device, etc. for mounting the tower and its auxiliary machinery is attached.

昇降型リグ１０は現場に到達して海底に脚柱１２が着床
し、リグ１０が海面より所望の高さに持ち上げられると
、片持ち作業甲板１４が船尾より外方に突出するように
移動されて所定のドリル作業を開始する。When the elevating rig 10 reaches the site and the pedestal 12 lands on the seabed and the rig 10 is lifted to a desired height above the sea surface, the cantilevered work deck 14 is moved so as to protrude outward from the stern. and start the prescribed drilling operation.

ところで、従来、この種の昇降型リグ１０が操業してい
た場所よりも深海域において操業するためには、他の型
式のリグと囮様に海底にテンプレート２０（第２図）を
設置する必要がある。By the way, in order to operate in deeper waters than where this type of lifting rig 10 has conventionally operated, it is necessary to install a template 20 (Fig. 2) on the seabed like a decoy with other types of rigs. There is.

テンプレート２０は水平方向に伸長する支持ベース部材
であって、これに坑口装置として吹出し防止装置ＢＯＰ
　（第３図）を取り付けて海底に降下し、その場に固定
する。The template 20 is a support base member extending in the horizontal direction, and a blowout prevention device BOP is attached thereto as a wellhead device.
(Fig. 3), lowered to the seabed, and fixed in place.

以上に述べた作業を行なうにあたって、この発明では、
片持ら作業甲板１４の下方にテンプレート２０を収納し
たまま曳航させ、所定の現場に達した時に、甲板昇降型
リグ１０を据え付け、次で片持ち作業甲板１４を外方に
張り出した後、テンプレート２０に坑口装置の吹出し防
止装置８０Ｐを取り付けて海底に据え付ける。In performing the above-mentioned work, in this invention,
The template 20 is stored under the cantilevered work deck 14 and towed, and when a predetermined site is reached, the deck elevating rig 10 is installed. Next, after the cantilevered work deck 14 is extended outward, the template 20 is towed. A blowout prevention device 80P of the wellhead device is attached to 20 and installed on the seabed.

［テンプレートの装備・第４図１ その操作を行なう第一の行程としては、甲板昇降型リグ
１０を第４図に示すように、テンプレート２０を岸ｌ！
３０の上部に準備しである部位に接近させ、脚柱１２を
海底に肴床し、甲板昇降型リグ１０を水面より所望の高
さに持ら上げた後、片持ち作業甲板１４を外方に張り出
して、適当な手段、たとえば塔装置１６に設けたウィン
チ等を利用して作業甲板１４の下方にまで引き上げて、
その場に固定する。[Equipping the template - Fig. 4 1 As the first step to perform the operation, as shown in Fig. 4, the deck elevating rig 10 is moved to the shore.
After approaching a certain part prepared on the upper part of the rig 30, lowering the pedestal 12 to the seabed and lifting the deck elevating type rig 10 to a desired height above the water surface, the cantilever working deck 14 is moved outward. and using appropriate means such as a winch installed on the tower device 16, pull it up to below the work deck 14,
Fix it in place.

［テンプレートの輸送・第５図］ 以上の操作が終了した時点で、バーち作業甲板１４を、
その船尾より外方に張り出している状態から、昇降型リ
グ１０の甲板内に後退させ、次で、脚柱１２を上昇させ
て、昇降型リグ１０を海面上に浮かばせた状態にして、
これを所望の掘さく位置へと曳航用船によって航行させ
る。[Transportation of template - Figure 5] When the above operations are completed, the bar work deck 14 is
The elevating rig 10 is moved back into the deck of the elevating rig 10 from the state extending outward from the stern, and then the pedestal 12 is raised so that the elevating rig 10 is floating on the sea surface.
This is sailed to the desired digging position by a towing vessel.

［テンプレートの装備・第６図］ このようにしてテンプレート２０を搭載した甲板昇降型
リグが現場に到着したとき、脚柱１２を海底へと降下し
て、その端部を海底に着床させ、次に、リグ１０を脚柱
１２について９上昇させて海面上の所望の作業高さに至
らせる。そこで、片持ち作業甲板１４を船尾より外方に
張り出させる。[Equipment of template - Figure 6] When the deck elevating rig carrying the template 20 in this manner arrives at the site, the pedestal 12 is lowered to the seabed, its end is placed on the seabed, The rig 10 is then raised 9 degrees on the pedestals 12 to the desired working height above sea level. Therefore, the cantilevered working deck 14 is made to project outward from the stern.

これによって作業甲板１４の下方に固定しであるテンプ
レート２０を掘さくを行おうとする海底の直上に位置す
ることができる。This allows the template 20, which is fixed below the working deck 14, to be positioned directly above the seabed where excavation is to be performed.

そこで、作業甲板１４の下方に固定しであるテンプレー
ト２０を所望の位置まで降下した上、テンプレート２０
の上部に吹出し防止装置ＢＯＰなどの所定の装置を取り
付け、またテンプレート２０に案内ワイヤ取付は用の案
内部材および案内ワイヤ２２を取り付ける。Therefore, the template 20 fixed below the work deck 14 was lowered to the desired position, and then the template 20 was lowered to the desired position.
A predetermined device such as a blow-out prevention device BOP is attached to the upper part of the template 20, and a guide member and a guide wire 22 for attaching a guide wire are attached to the template 20.

しテンプレートの据付け・第７−８図１これらの作業の
終了後、塔装置１Ｇに設けたウィンチを作動して、吹出
し防止装置ＢＯＰおよび案内ワイヤ２２を取り付けたテ
ンプレート２０を海底へと降下する。Installation of the template - Figures 7-8 1 After these operations are completed, the winch provided on the tower device 1G is operated to lower the template 20 to which the blow-out prevention device BOP and the guide wire 22 are attached to the seabed.

テンプレート２０が海底に到達した後、テンプレート２
０の所定の位置に設けである固定用開口２４に向けてド
リル１１６を降下する。この場合、テンプレート２０と
片持ち作業甲板１４との間は案内ワイヤ２２によって直
結されているために、テンプレート２０の所望位置への
ドリル装置２６などの装入は、極めて的確に実行するこ
とができる。After template 20 reaches the ocean floor, template 2
The drill 116 is lowered toward the fixing opening 24 provided at a predetermined position. In this case, since the template 20 and the cantilever work deck 14 are directly connected by the guide wire 22, the drilling device 26 and the like can be inserted into the desired position of the template 20 extremely accurately. .

テンプレート２０の所望位置を介して海底内にドリル作
業を完了した後、そのドリル開口内にリ セメントを注入する。この作業によりテンプレート２０
は海底に定着される。After completing the drilling into the seabed through the desired location of template 20, recement is injected into the drill opening. With this operation, template 20
is settled on the ocean floor.

このようにして、テンプレート２０を掘さくすべき海底
に据え付ければ、テンプレート２０に取り付けである吹
出し防止装置ＢＯＰへの接近は、テンプレート２０とリ
グ１０の片持ち作業甲板１４とを連絡する案内ワイヤ２
２により極めて容易におこなえるので、所望の吹出し防
止装置ＢＯＰに対して油井掘さく用の導管２８を連結し
て、油井のｉｉｌさく作業を実行できる。In this way, when the template 20 is installed on the seabed to be excavated, access to the blow-out prevention device BOP attached to the template 20 is made possible by the guide wire connecting the template 20 and the cantilever working deck 14 of the rig 10. 2
2, the oil well drilling operation can be performed by connecting the oil well drilling conduit 28 to the desired blowout prevention device BOP.

［発明の効果］ この発明の甲板昇降型海上作業台、すなわちジャック・
アップ・リグによる坑口装置の設置法は、以上に述べた
通りであるため、テンプレート２０を現場に据え付ける
ために、別途、費用のかさむクレーン船を必要とするこ
とがない。[Effect of the invention] The deck elevating type offshore work platform of this invention, that is, the jack
Since the method of installing the wellhead device using an up-rig is as described above, there is no need for a separate expensive crane ship to install the template 20 on site.

さらに、現場に輸送されたテンプレート２０は、掘さく
すべき位置にリグ１０の片持ち作業甲板１４の直下に降
下され、しかもリグ１０とテンプレート２０との間は案
内ワイヤ２２によって直結されているため、テンプレー
ト２０の海底における据付は位置を確認するための費用
のかさむ手段を必要とすることなく、テンプレート２０
の所望の部位にドリル・パイプ等を到達させて、吹出し
防止装置ＢＯＰに直結することができる。Furthermore, the template 20 transported to the site is lowered directly below the cantilever work deck 14 of the rig 10 to the position to be excavated, and the rig 10 and the template 20 are directly connected by a guide wire 22. , the installation of the template 20 on the seabed does not require costly means of locating the template 20.
A drill pipe or the like can be made to reach a desired portion of the blowout prevention device BOP and directly connected to the blowout prevention device BOP.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は甲板昇降型海上作業台の略斜視図、第２図は坑
口装置の一部として海底に設置すべきテンプレートの平
面図、第３図は坑口装置の一部としてテンプレートに取
り付けるべき吹出し防止装置の一例を示す略図、第４図
ないし第８図はこの発明の方法を実行する過程を説明す
る略図である。 図面における主な符号は次のとおりである。 １０・・・甲板昇降型海上作業台（リグ）１２・・・脚
柱 １４・・・片持ち作業甲板 １６・・・塔装置 ２０・・・テンプレート ＢＯＰ・・・吹出し防止装置 ほか１名 第３図 第５図Figure 1 is a schematic perspective view of a deck-elevating offshore work platform, Figure 2 is a plan view of a template to be installed on the seabed as part of the wellhead equipment, and Figure 3 is a blowout that should be attached to the template as part of the wellhead equipment. FIGS. 4 to 8 are schematic diagrams illustrating an example of a prevention device, and FIGS. 4 to 8 are diagrams illustrating the process of carrying out the method of the invention. The main symbols in the drawings are as follows. 10... Deck elevating type offshore work platform (rig) 12... Pier 14... Cantilever work deck 16... Tower device 20... Template BOP... Blowout prevention device and 1 other person 3rd Figure 5

Claims (1)

【特許請求の範囲】 （ａ）甲板昇降型海上作業台を坑口装置の一部としてテ
ンプレートを準備する部位に接近させて脚柱を降下した
後、作業台を海面上に上昇させ、片持ち作業甲板を作業
台の船尾より外方に突出させて前記テンプレートの直上
に位置させた後、前記テンプレートを前記片持ち作業甲
板の下方に収容固定し、再度前記片持ち作業甲板を船中
に後退させる段階と、 （ｂ）前記甲板昇降型海上作業台の前記脚柱を引き上げ
て作業台を海上に浮かべた状態で曳航し所定の作業現場
にまで航行させる段階と、（ｃ）前記甲板昇降型海上作
業台の脚柱を前記現場において降下した後、前記作業台
を海面上に上昇して作業台を設置する段階と、 （ｄ）前記テンプレートを収容固定した前記片持ち作業
甲板を船尾より外方に突出させた後、前記テンプレート
に所望の坑口装置を装備する段階と、 （ｅ）前記テンプレートを海底に降下してその場に固定
設置する段階とから成る甲板昇降型海上作業台による坑
口装置の設置法。[Scope of Claims] (a) A deck-elevating offshore work platform is brought close to the area where the template is prepared as part of the wellhead equipment, the pedestals are lowered, and then the work platform is raised above the sea surface to perform cantilever work. After projecting the deck outward from the stern of the work platform and positioning it directly above the template, the template is accommodated and fixed below the cantilever work deck, and the cantilever work deck is retreated into the ship again. (b) lifting the pillars of the deck elevating type offshore work platform and towing the work platform floating on the sea to a predetermined work site; (c) said deck elevating type offshore work platform; (d) moving the cantilevered work deck, in which the template is accommodated and fixed, outward from the stern; and (e) lowering the template to the seabed and fixing it there. Installation method.
JP15896084A 1984-07-31 1984-07-31 Setting of entrance device by deck-elevating type offshore working platform Granted JPS6138011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15896084A JPS6138011A (en) 1984-07-31 1984-07-31 Setting of entrance device by deck-elevating type offshore working platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15896084A JPS6138011A (en) 1984-07-31 1984-07-31 Setting of entrance device by deck-elevating type offshore working platform

Publications (2)

Publication Number Publication Date
JPS6138011A true JPS6138011A (en) 1986-02-24
JPH0332650B2 JPH0332650B2 (en) 1991-05-14

Family

ID=15683109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15896084A Granted JPS6138011A (en) 1984-07-31 1984-07-31 Setting of entrance device by deck-elevating type offshore working platform

Country Status (1)

Country Link
JP (1) JPS6138011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06328534A (en) * 1991-12-10 1994-11-29 Niigata Eng Co Ltd Injection molding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06328534A (en) * 1991-12-10 1994-11-29 Niigata Eng Co Ltd Injection molding machine

Also Published As

Publication number Publication date
JPH0332650B2 (en) 1991-05-14

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