Volume 35 Issue 1
Jan.  2018
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WANG Wei. Study and Application of Optimized Solids Control Technologies in Jidong Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 47-52. doi: 10.3969/j.issn.1001-5620.2018.01.009
Citation: WANG Wei. Study and Application of Optimized Solids Control Technologies in Jidong Oilfield[J]. DRILLING FLUID & COMPLETION FLUID, 2018, 35(1): 47-52. doi: 10.3969/j.issn.1001-5620.2018.01.009

Study and Application of Optimized Solids Control Technologies in Jidong Oilfield

doi: 10.3969/j.issn.1001-5620.2018.01.009
  • Received Date: 2017-10-24
  • Publish Date: 2018-01-30
  • Each block in Jidong Oilfield has different target zones, well depths and well types, and the drilling fluids used in drilling the target zones are also different. Drilling fluids used in drilling operations had solids content and content of bentonite that were higher than necessary. The high contents of solids and bentonite led to a series of problems such as highly viscosified drilling fluid, reduced ROP, differential pipe sticking, and sticking of wireline logging tools etc. To resolve these problems, solids contents and bentonite contents of the drilling fluids used, the configuration and use of solids control equipment (SCE) in each block were investigated, and the effects of formation characteristics, drilling fluid formulation, and the configuration and use of SCE on the control of solids content in drilling fluid were analyzed. Technologies targeted at the specific requirement of solids control was prepared, mainly including the maximum solids and bentonite contents allowed, rules for formulating and converting drilling fluids, and rules for solids control and use of SCE during drilling operations. These technologies have been used on the well G76-65 and the well G76-61 in the block Gaoshangpu. Compared with other 5 wells drilled nearby, it was found that from mud formulation, the addition of polymer additives to the use of SCE, the technologies mentioned above were strictly applied on the two wells. And correspondingly, the properties of the drilling fluids used on these two wells were pretty good, and wireline logging jobs were successful in the first try. Field practices have proven that the optimized solids control technologies are beneficial to the fast, efficient and quality drilling operations.

     

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