Title:
SYSTEM FOR RECYCLING ALL OIL BASE MUD FROM OIL BASE MUD WELL DRILLING WASTE
Document Type and Number:
WIPO Patent Application WO/2015/081878
Kind Code:
A1
Abstract:
A system for recycling all oil base mud from oil base mud well drilling waste is discloses. The oil base mud well drilling waste comprises oil base rock debris, vibrating screen mud leakage, well cementation flowback mixed mud, leaking stoppage flowback waste mud, well completion and tank cleaning bottom mud, waste water containing oil base mud, and all oil base contained waste polluted by oil base mud generated in an oil base mud well drilling process. The oil base mud recycling system comprises a multi-effect centrifugation sub-system for recycling oil base mud and a normal temperature depth desorption sub-system. The recycling rate of processed oil base mud reaches 99.7%, the single-well oil base mud cost is reduced by 8%-10%, the percentage of oil contained in the final solid phase after the processing is less than 0.3%, and environmental protection standards are reached. The system solves a technical problem that expensive oil base mud in all oil base contained waste generated in a well drilling process is rapidly recycled and cyclically used, and the environmental protection problem is thoroughly solved in the processing process without bringing about secondary pollution, so that performance of the recycled oil base mud meets recycling requirements.
Inventors:
WANG BING (CN)
LI YUEDONG (CN)
REN HONGYANG (CN)
ZHANG CONG (CN)
DENG CUNYI (CN)
LI YUEDONG (CN)
REN HONGYANG (CN)
ZHANG CONG (CN)
DENG CUNYI (CN)
Application Number:
PCT/CN2014/093078
Publication Date:
June 11, 2015
Filing Date:
December 05, 2014
Export Citation:
Assignee:
WANG BING (CN)
LI YUEDONG (CN)
REN HONGYANG (CN)
ZHANG CONG (CN)
DENG CUNYI (CN)
LI YUEDONG (CN)
REN HONGYANG (CN)
ZHANG CONG (CN)
DENG CUNYI (CN)
International Classes:
E21B21/06
Domestic Patent References:
| WO2013049802A2 | 2013-04-04 | |||
| WO2008064469A1 | 2008-06-05 | |||
| WO2013075252A1 | 2013-05-30 |
Foreign References:
| CN103206179A | 2013-07-17 | |||
| CN102149644A | 2011-08-10 | |||
| CN101812979A | 2010-08-25 | |||
| EP2481881A2 | 2012-08-01 |
Attorney, Agent or Firm:
CHENGDU JIUDINGTIANYUAN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
成都九鼎天元知识产权代理有限公司 (CN)
成都九鼎天元知识产权代理有限公司 (CN)
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