本篇文章讲述的是MPD系统的好处，该仪表具有高精度和提供早期踢出检测。认为有早期检测进水，以便提供早期控制，可能打开通过MPD系统安全控制这样的体积。由于可以在不关闭井内的情况下处理注入物，因此经常会加宽套管设置的深度(Couturier et al. 2015)。Philip(2011)认为，采用MPD系统钻井可以节约可观的成本，某些井的安全性可以显著提高。此外，井筒呼吸或膨胀是钻井过程中常见的问题。本篇伯明翰论文代写文章由英国论文通AssignmentPass辅导网整理，供大家参考阅读。
This meter provides with high accuracy and delivers detection of early kick. It is considered that there is early detection of influxes in order to offer early stage control, possible opening of controlling such volumes safely through the system of MPD. As handling of influxes can be performed without shutting within the well, the depths of casing setting are widened often (Couturier et al. 2015). It is asserted by Philip (2011) that drilling with the system of MPD can result in savings of considerable cost and safety of certain wells can be significantly improved. Furthermore, wellbore breathing or ballooning are the usual problem associated with drilling.
It is suggested by Mathew (2004) that parameters remain steady till the point the drilling is taking place. However, as soon as the pumps are switched off, there is decrease in the downhole pressure which is also regarded as loss of friction and the formation fluids enter back within the well and increase the level of pit (Fredericks and Reitsma 2006). The force of drilling fluids in with the formation from the pressure of downhole, but upon the decrement of pressure of downhole, the fluids come back within the well resulting in the ballooning. It is suggested by William (2012) that technology of MPD addresses the concern through the application of back pressure. Upon pumps being switched off, back pressure of surface in enhanced while it replaces the losses of friction and results in very minimal to absolutely no changes in the pressure of downhole. Hence, the dynamic pressure reduction among the wells assist in reduction of the effects of wellbore breathing.
According to the reports of IADC, there are 4 MPD variations in which every variation is captured in an individual gradient with dual measures. Individual gradient comes forward when individual density of fluid gets manipulated whilst introducing and manipulating the dual gradient (Saeed, Lovorn and Arne 2012).
There are four different techniques of MPD wherein each of the technique is captures in individual and dual nature of gradient. Individual or single gradient occurs wherein there is manipulation of single fluid density while the dual gradient is introduced and manipulated of multiple fluid densities (Patel et al. 2013).