CN2578520Y - Self-lifting well drilling platform tensioner - Google Patents
Self-lifting well drilling platform tensioner Download PDFInfo
- Publication number
- CN2578520Y CN2578520Y CN 02249102 CN02249102U CN2578520Y CN 2578520 Y CN2578520 Y CN 2578520Y CN 02249102 CN02249102 CN 02249102 CN 02249102 U CN02249102 U CN 02249102U CN 2578520 Y CN2578520 Y CN 2578520Y
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- CN
- China
- Prior art keywords
- drilling
- tensioner
- drilling platform
- self
- sleeve pipe
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- Expired - Lifetime
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Abstract
The utility model relates to a self-lifting well drilling platform tensioner, which is composed of a main body part and a hydraulic part. The problem of the curve occurrence of a 20' drilling sleeve pipe string in sea water is solved. Thus, the drilling sleeve pipe string of about at least 200 meters below the sea water is subjected to the suspending action of upward resultant force. Meanwhile, a sleeve pipe bears the weight of an upper end well head and a blowout preventer and the impact of sea waves and the safety of drilling operation can be greatly enhanced. The utility model has the advantages of reasonable design, simple structure, advanced and safe technological equipment for cluster drilling operation, enhancement of the drilling security of the 20' drilling sleeve pipe, reasonable cluster drilling process, and enhancement of sea petroleum drilling efficiency.
Description
Technical field
The utility model belongs to the auxiliary safety device of offshore drilling engineering, particularly is exclusively used in 20, and " well casing carries out the self-elevating drilling platform tensioner of drillng operation.
Background technology
At present, in self-elevating drilling platform " boundling drilling well " operation process, 20 " weight very big well head head and preventer are equipped with in well casing string upper end; the lower end is fixed in the mud line of seabed; the bunch tube of about 200 meters length is suspended in the seawater between the upper and lower end; be subjected to the effect of wave and wind-force and swing, and the bunch tube in the seawater is bent, when serious even cause bunch tube to destroy.Owing to do not have tensioner on the self-elevating drilling platform,, a cover tensioner need be installed on self-elevating drilling platform in order to solve an above-mentioned difficult problem.
Technology contents
The purpose of this utility model provides a kind of self-elevating drilling platform tensioner, " the well casing string bends and is difficult to be inserted in problem in the hanging ring, makes that about more than 200 meters long bunch tube is subjected to the suspension effect of making a concerted effort upwards below the seawater to solve 20 in the seawater.Simultaneously, the impact that can make sleeve pipe bear upper end well head and preventer weight and wave, the safety that improves drillng operation greatly.
The utility model is made up of main part and hydraulic part, main part is made up of a hanging ring, supporting disk, four wire rope, quadruplet oil cylinder, quadruplet hangers etc., supporting disk (6) is enclosed within the hanging ring (1), hanging ring (1) directly links to each other with the oil cylinder (3) on its top by four wire rope (2), oil cylinder (3) hangs by hangers (4) again, and hangers (4) firmly welds with the crossbeam (5) of offshore boring island.Take groove (7) on supporting disk (6) face of cylinder apart and introduce the conical surface (8), (9).Four mounting ears (10) that link with wire rope (2) are arranged on the hanging ring (1).Hydraulic part is made up of a hydraulic operation cabinet, two cover accumulators, hydraulic line and hydraulic power source, control quadruplet oil cylinder.The utility model is reasonable in design, and is simple in structure, makes " boundling drilling well " operation possess more advanced and safe technological equipment, and " the well casing drilling safety makes " boundling drilling well " technology more reasonable to improve 20.Simultaneously, wide popularization and application can improve offshore oil drilling efficient greatly, has good economic benefit.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model vertical view;
Fig. 3 is the utility model supporting disk structural front view;
Fig. 4 is the utility model supporting disk structure vertical view;
Fig. 5 is the utility model hanging ring structure vertical view;
Fig. 6 is the utility model hanging ring structure right view;
Fig. 7 is the utility model and 20, and " the well casing polyphone connects schematic diagram.
The specific embodiment
In the utility model, shown in Fig. 1-7, on the supporting disk face of cylinder, process and take groove apart and introduce the conical surface, supporting disk is enclosed within the hanging ring, clamp 20 simultaneously " sleeve pipe in the well casing string, hanging ring directly links to each other with the oil cylinder on its top by four wire rope, and oil cylinder hangs by hangers again; the crossbeam of hangers and offshore boring island firmly welds, so a whole set of tensioner is suspended on below the offshore boring island like this." sleeve pipe in the well casing string is so about more than 200 meters long 20 " the well casing string also is subjected to the suspension effect of making a concerted effort upwards thus below the seawater because the supporting disk clamping 20.After well cementing operation, 20 " the well casing string is fixed in the stratum, seabed, by the suspension effect of tensioner in the upper end, can make 20 " well casing string bears the impact of upper end well head head and preventer weight and wave.
Claims (4)
1, a kind of self-elevating drilling platform tensioner, form by main part and hydraulic part, main part is made up of a hanging ring, supporting disk, four wire rope, quadruplet oil cylinder, quadruplet hangers etc., it is characterized in that supporting disk (6) is enclosed within the hanging ring (1), hanging ring (1) directly links to each other with the oil cylinder (3) on its top by four wire rope (2), oil cylinder (3) hangs by hangers (4) again, and hangers (4) firmly welds with the crossbeam (5) of offshore boring island.
2,, it is characterized in that taking apart on supporting disk (6) face of cylinder groove (7) and introduce the conical surface (8), (9) according to the described self-elevating drilling platform tensioner of claim 1.
3,, it is characterized in that the mounting ear (10) that has four to link on the hanging ring (1) with wire rope (2) according to the described self-elevating drilling platform tensioner of claim 1.
4,, it is characterized in that hydraulic part overlaps accumulators, hydraulic line and hydraulic power source by a hydraulic operation cabinet, two and forms, control quadruplet oil cylinder according to the described self-elevating drilling platform tensioner of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249102 CN2578520Y (en) | 2002-10-29 | 2002-10-29 | Self-lifting well drilling platform tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02249102 CN2578520Y (en) | 2002-10-29 | 2002-10-29 | Self-lifting well drilling platform tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578520Y true CN2578520Y (en) | 2003-10-08 |
Family
ID=33719595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02249102 Expired - Lifetime CN2578520Y (en) | 2002-10-29 | 2002-10-29 | Self-lifting well drilling platform tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578520Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229634A (en) * | 2014-09-22 | 2014-12-24 | 上海外高桥造船有限公司 | Loading test device and method for self-elevating platform casing auxiliary tension system |
| CN105090146A (en) * | 2015-08-19 | 2015-11-25 | 广东精铟海洋工程股份有限公司 | Hydraulic system for tensioning device of water-insulation guide pipe |
-
2002
- 2002-10-29 CN CN 02249102 patent/CN2578520Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229634A (en) * | 2014-09-22 | 2014-12-24 | 上海外高桥造船有限公司 | Loading test device and method for self-elevating platform casing auxiliary tension system |
| CN104229634B (en) * | 2014-09-22 | 2016-04-27 | 上海外高桥造船有限公司 | For load test apparatus and the method for the auxiliary tension system of jack-up platform sleeve pipe |
| CN105090146A (en) * | 2015-08-19 | 2015-11-25 | 广东精铟海洋工程股份有限公司 | Hydraulic system for tensioning device of water-insulation guide pipe |
| CN105090146B (en) * | 2015-08-19 | 2017-09-29 | 广东精铟海洋工程股份有限公司 | Riser pipe tensioning apparatus hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121029 Granted publication date: 20031008 |