CN204899816U - Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop - Google Patents
Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop Download PDFInfo
- Publication number
- CN204899816U CN204899816U CN201520595506.1U CN201520595506U CN204899816U CN 204899816 U CN204899816 U CN 204899816U CN 201520595506 U CN201520595506 U CN 201520595506U CN 204899816 U CN204899816 U CN 204899816U
- Authority
- CN
- China
- Prior art keywords
- valve
- centre bore
- nipple joint
- utility
- model
- 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.)
- Expired - Fee Related
Links
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop, including setting up at the centre bore of nipple joint side valve valve stifled central line department with rather than the pressure releasing pathway of sub -unit connection be equipped with the nail rather than the seal pin through threaded connection in the centre bore. The utility model discloses an adoption sets up centre bore and pressure releasing pathway on nipple joint side valve valve is stifled to set up the structure of seal pin nail in the centre bore, before connecing the by -pass manifold, loosen the seal pin nail, if the by pass port of continuous cycle nipple joint has pressure to reveal, the fluid can pass through the pressure releasing pathway flow direction external world that the valve blocked up, realizes pressure release and warning effect. The utility model discloses simple structure, consequently convenient to use has greatly reduced the potential safety hazard.
Description
Technical field
The utility model relates to wellbore construction work cycle valve technology field, particularly one not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure.
Background technology
In drilling operation course, under balance pressure drilling, narrower bore gap low fracture pressure window well, presser sensor well, tail pipe circulating drilling etc. require that well keeps mud continuous circulation state, stable borehole pressure is kept to reach, prevent from being hampered mud circulation in stopping well that the accidents such as bit freezing cause because of formation fracture, well kick, bit freezing, drill bit or Bottom Hole Assembly (BHA), and then prevent the generation of a series of abnormal problem therefore brought.Continuous circulation system is used to solve the problem well, but when using continuous circulation system, operating personnel are needed to load and unload by-pass manifold there being pressure state to go down, now, once leaking appears in the side valve on by-pass port, to higher hydraulic pressure be caused to gush, the personal safety of harm operating personnel.There is larger potential safety hazard.
Summary of the invention
The utility model provides one not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure for solving in known technology the technical problem that exists.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: one not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure, comprise and be arranged on the centre bore that pipe nipple side valve valve blocks up centerline and the pressure release passage be connected with its underpart, in described centre bore, be provided with the seal pin be threaded connection with it.
Described pressure release passage comprises the radial hole being arranged on pipe nipple side valve valve and blocking up interior axial hole and be connected with described axial hole, described radial hole is arranged along the radial direction that valve is stifled, and be connected with the bottom of described centre bore, described axial hole is in communication with the outside, and parallel with described centre bore.
The advantage that the utility model has and good effect are: arrange centre bore and pressure release passage by adopting to block at pipe nipple side valve valve, and the structure of seal pin is set in centre bore, before connecing by-pass manifold, unclamp seal pin, if the by-pass prot of continuous circulation pipe nipple has pressure leakages, the pressure release passage that fluid can block through valve flows to extraneous, realizes pressure release and warning function.The utility model structure is simple, easy to use, therefore significantly reduces potential safety hazard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model application;
Fig. 3 is the outside drawing of Fig. 2.
In figure: 1, body; 2, side valve seat; 3, seal pin; 4, valve blocks up; 5, side valve lid; 6, support ring; 7, pressing plate; 8, upper ball base; 9, ball valve; 10, lower ball base; 11, knob.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 2 and Fig. 3, existing not termination of pumping drilling well continuous circulation pipe nipple comprises body 1, in body 1, lower ball base 10, ball valve 9, upper ball base 8 and pressing plate 7 are installed from bottom to up successively, pressing plate 7 adopts many valve structures, support ring 6 is provided with in pressing plate 7, support ring 6 puts off on the upper surface of upper ball base 8, is provided with spacing hole gear above support ring 6, and spacing hole gear is arranged in pressing plate 7.Ball valve 9 is provided with knob 11.Be provided with the by-pass port with the port adaptation of ball valve 9 in the side of body 1, in by-pass port, be provided with side valve, side valve comprises side valve seat 2, valve stifled 4 and side valve lid 5, and side valve lid 5 is hinged on side valve seat 2, can only open by ecto-entad.
Refer to Fig. 1, in order to avoid the potential safety hazard that ball valve leaks, the utility model provides one not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure, comprise and be arranged on the centre bore that pipe nipple side valve valve blocks up 4 centerline and the pressure release passage be connected with its underpart, in described centre bore, be provided with the seal pin 3 be threaded connection with it.
In the present embodiment, described pressure release passage comprises the radial hole being arranged on pipe nipple side valve valve and blocking up the axial hole in 4 and be connected with described axial hole, and the radial direction that described radial hole blocks up 4 along valve is arranged, and is connected with the bottom of described centre bore, described axial hole is in communication with the outside, and parallel with described centre bore.
Using method of the present utility model:
Body 1 upper and lower side is drilling rod button, and before going into the well, continuous circulation pipe nipple is connected on single or column top as a part for drill string.When normally creeping into, ball valve 9 is in upper and lower connected state, drilling fluid directly enters drilling rod bottom by pipe nipple by top, after entering under a single or column, continuous circulation pipe nipple is seated on drilling floor surface, whether then seal pin 3 is outwards screwed out the certain distance inspecting valve relief hole blocked up on 4 by operating personnel has liquid to flow out, and flows out and then illustrates that ball valve sealing damages, need termination of pumping to change continuous circulation pipe nipple if any liquid; If relief hole does not have liquid to flow out, lay down valve stifled 4, connect by-pass manifold, re-use special tool and make ball valve 9 half-twist by knob 11, the lower channel of ball valve 9 is closed, and by-pass is opened.Then closed by lower pipeline on drilling fluid by tele-control system, bypass line is opened, and drilling fluid enters drilling rod Inner eycle by by-pass port.After single or column has connected, conversion ball valve 9 is in upper and lower pass-through state, lays down bypass pipe, and the valve changed not with bypass safe early warning structure blocks up and continues to creep into operation.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (2)
1. a not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure, it is characterized in that, comprise and be arranged on the centre bore that pipe nipple side valve valve blocks up centerline and the pressure release passage be connected with its underpart, in described centre bore, be provided with the seal pin be threaded connection with it.
2. not termination of pumping drilling well continuous circulation pipe nipple bypass safe early warning structure according to claim 1, it is characterized in that, described pressure release passage comprises the radial hole being arranged on pipe nipple side valve valve and blocking up interior axial hole and be connected with described axial hole, described radial hole is arranged along the radial direction that valve is stifled, and be connected with the bottom of described centre bore, described axial hole is in communication with the outside, and parallel with described centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595506.1U CN204899816U (en) | 2015-08-07 | 2015-08-07 | Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595506.1U CN204899816U (en) | 2015-08-07 | 2015-08-07 | Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899816U true CN204899816U (en) | 2015-12-23 |
Family
ID=54922002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520595506.1U Expired - Fee Related CN204899816U (en) | 2015-08-07 | 2015-08-07 | Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622864A (en) * | 2021-11-03 | 2022-06-14 | 中国石油天然气集团有限公司 | Continuous circulating valve suitable for inflation drilling, drilling system and process |
-
2015
- 2015-08-07 CN CN201520595506.1U patent/CN204899816U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622864A (en) * | 2021-11-03 | 2022-06-14 | 中国石油天然气集团有限公司 | Continuous circulating valve suitable for inflation drilling, drilling system and process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2526034C (en) | Reverse circulation cementing process | |
| CN204532152U (en) | One is surged the built-in slips of pressure-bearing | |
| CN204899816U (en) | Pump drill well continuous cycle nipple joint bypass safety precaution structure does not stop | |
| CN108894969B (en) | Monitoring and judging method for drilling pump of petroleum drilling engineering and pumping pressure protection system thereof | |
| CN211230307U (en) | Continuous sand washing device and special continuous sand washing adapter | |
| US2134200A (en) | Plug valve casing head | |
| CN109184618B (en) | Device and method for drilling, grouting, water plugging and preventing water burst, sand burst and slurry break | |
| CN204457614U (en) | A kind of two disc type circulating valve that breaks | |
| CN203335042U (en) | Electric submersible pump production tubular column with hydraulic control valve | |
| CN102444390A (en) | Emergency rescuing device for incontrollable blowout | |
| CN202788729U (en) | Multifunctional sucker rod hanging blowout preventer | |
| CN106593340B (en) | High-pressure shallow totally-enclosed drilling plug device and using method thereof | |
| CN201843543U (en) | Device for preventing wellhead drilling fluid from splashing | |
| CN112324384B (en) | Non-well killing operation process method applying pressure control switch valve | |
| RU2598666C1 (en) | Lubricator plant with intelligent actuators | |
| CN203321418U (en) | Near-bit downhole blowout preventer | |
| CN209556970U (en) | A kind of workover treatment well killing fluid reflux unit | |
| CN102767345A (en) | Multifunctional sucker rod hanging blowout preventer | |
| CN200940465Y (en) | Cable anti-blow-out device | |
| CN212428661U (en) | Pressure controlled drilling apparatus for maintaining bottom hole pressure constant | |
| CN103573213A (en) | Underground instantaneous boosting tool and method | |
| CN203321405U (en) | Sucker rod blowout preventer | |
| CN214944161U (en) | Downhole safety valve opening and closing tool | |
| CN202266210U (en) | Continuous circulation drilling device | |
| CN207296944U (en) | A kind of pressure control device of docking style geothermal well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170112 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Technology Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20170807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |